Hi, make sure you type the quest names into the plugin command exactly as they are in the plugin parameters. For example, "MY QUEST" would be different than "My Quest".
Another potential issue you might be having is each quest has a "Board Switch" parameter which will determine if it can appear on the quest board or not, if you have set that and not turned the switch ON in game, the quests will not appear on the board.
Last, quests that have already been started or completed will not appear on the quest board, which it sounds like wouldn't be your case but you might want to double check you aren't starting them somehow and then checking the board.